Quote Originally Posted by TheReleafCenter
How do I know what my nanogram level is before I drive? I understand that more than two drinks an hour and I'll be intoxicated and can make a judgment based on that.
That is the key question for patients, though lawmakers and police won't take the time to answer it for us. Its in our best interest to push for this issue to be studied and resolved as is possible. A good place to start is the CA NORML study which these 5 nanogram limits are based on:

http://www.canorml.org/healthfacts/DUICreport.2005.pdf

I think they're suggest 3-4 hours is the impairment window (for 5 ng) considering a medium to strong dose.

But since THC levels related to impairment vary so much from person to person and strain to strain, its going to be a struggle for patients to have their concerns heard and answered with the new DUID rules. How can you justly enforce a law based on criteria which citizens have no way of measuring!?